498585709 has 2 divisors, whose sum is σ = 498585710. Its totient is φ = 498585708.

The previous prime is 498585701. The next prime is 498585727. The reversal of 498585709 is 907585894.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 428076100 + 70509609 = 20690^2 + 8397^2 .

It is a cyclic number.

It is not a de Polignac number, because 498585709 - 2³ = 498585701 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 498585709.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (498585701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 249292854 + 249292855.

It is an arithmetic number, because the mean of its divisors is an integer number (249292855).

Almost surely, 2^498585709 is an apocalyptic number.

It is an amenable number.

498585709 is a deficient number, since it is larger than the sum of its proper divisors (1).

498585709 is an equidigital number, since it uses as much as digits as its factorization.

498585709 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3628800, while the sum is 55.

The square root of 498585709 is about 22329.0328720256. The cubic root of 498585709 is about 792.9514702773.

The spelling of 498585709 in words is "four hundred ninety-eight million, five hundred eighty-five thousand, seven hundred nine".